exchange 2003 multiple GAL filter

How can i create multiple GAL filters in a hosted exchange 2003 enviroment? I need the GAL to display both distributionlist and users.
I know i have to do this through ADSI edit, but i can't work out the syntax.. Here is a GAL wich only display users, how do i add the "OR" command, so that it can display groups as well?

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